Epson Projector Emp 7850 User Manual

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Maintenance MaintenanceEMP-7850 User’s Guide
Air filters at side and base of projector
Pull the air filters out from the projector and then use a vacuum cleaner to 
clean them.
Replacing Consumables
This section describes how to replace the lamp and the air filters.
It is time to replace the lamp when:
The message Lamp Replace. appears on the screen when 
projection star ts.The   indicator is flashing orange
The projected images get darker or start to deteriorate in quality.
TIP
 If the air filters are broken or if the warning message reappears after 
they have been cleaned, they should be replaced. Replace them with 
new air filters. See   Appendices: Optional Accessories p.129
 Spare lamps are provided with spare air filters. The air filters should 
also be replaced when the lamp is replaced.
Lamp Replacement Period
A message will be displayed.Flashes orange 
						

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Maintenance MaintenanceEMP-7850 User’s Guide
PROCEDURE
Turn the projectors power off, wait for the cool-down 
period to end, and then disconnect the power cable.
The cool-down period lasts for about 30 seconds.Wait until the lamp has cooled down, and then 
remove the lamp cover from the base of the projector.
It takes a further one hour after the cool-down period has 
finished for the lamp to be cool enough.
Insert the screwdriver that is supplied with the spare lamp or 
some other flat-tipped screwdriver into the hollow between the 
air filter and the air filter cover. Slide the lamp cover until the 
[ ] mark on the lamp cover is aligned with the [ ] mark on 
the projector, and then lift up the lamp cover to remove it.
Replacing the Lamp
TIP
 The replacement warning message is set to appear after the 
following periods of lamp use, in order to maintain the initial 
brightness and quality of the projected images.
· When used continuously at high luminosity: about 1900 hours.
· When used continuously at low luminosity: about 2900 hours.
   Brightness Control p.89 
If you continue to use the lamp after this period, the possibility of 
the lamp breaking becomes greater. When the lamp replacement 
message appears, replace the lamp with a new one as soon as 
possible, even if it is still working.
 Depending on the characteristics and usage conditions of individual 
lamps, some lamps may darken or stop operating before the message 
is displayed. You should always have a spare lamp ready in case it is 
needed.
 Contact your dealer for a spare lamp.
CAUTION
 If you are replacing the lamp because it has stopped working, it is 
possible that the lamp is broken.
If replacing the lamp of a projector which has been installed to the 
ceiling, you should always assume that the lamp is broken and be 
extremely careful when removing the lamp cover.
 Wait until the lamp has cooled down sufficiently before removing the 
lamp cover. It takes a further one hour after the cool-down
period 
has finished for the lamp to be cool enough.
12
1
2 
						

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Loosen the two lamp fixing screws.
Use the screwdriver that is supplied with the spare lamp or 
some other flat-tipped screwdriver to loosen the two lamp 
fixing screws that are securing the lamp to the projector.
Take out the old lamp.
Fold out the handle as shown in the illustration below and pull 
the lamp out of the projector.
If the lamp is broken, replace it with a new lamp, or contact 
your local dealer for further advice. If replacing the lamp 
yourself, be careful to avoid pieces of broken glass.
3
4
11
2 
						

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Maintenance MaintenanceEMP-7850 User’s Guide
Install the new lamp.
Hold the lamp so that it faces the correct way to fit into the 
projector, and then insert the lamp until it clicks into place and 
tighten the two lamp fixing screws.Install the lamp cover.
Slide the cover in until it clicks into place.
56
TIP
 Install the lamp securely. If the lamp cover is removed, the lamp 
turns of automatically as a safety precaution. Moreover, the lamp will 
not turn on if the lamp or the lamp cover is not installed correctly. Spare lamps are provided with spare air filters. The air filters should 
also be replaced when the lamp is replaced.   p.125
 Dispose of used lamps properly in accordance with your local 
regulations. 
						

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Maintenance MaintenanceEMP-7850 User’s Guide
The projector has a built-in counter which keeps track of the lamp 
operating time, so that when the cumulative operating time reaches a 
certain point, it causes the replacement warning message to be displayed. 
Therefore, the counter needs to be reset using the configuration menu after 
the lamp has been replaced with a new one.PROCEDURE
Connect the power cable, turn on the projectors 
power, and then press the [Menu] button on the 
remote control.
The configuration menu will be displayed.
Select Reset Lamp Timer from the About menu 
and then press the [Enter] button on the remote 
control or the [Auto/Enter] button on the projectors 
control panel.Select Yes and then press the [Enter] button on the 
remote control or the [Auto/Enter] button on the 
projectors control panel.
The lamp operating time will then be reset.
Resetting the Lamp Operating Time
TIP
Do not reset the lamp operating time except after the lamp has been 
replaced. If the lamp operating time is reset at any other time, the 
lamp replacement period will not be indicated correctly.1
Remote control
2
Frequency Source
V ---.--Hz
V ---.--Hz
Reset Lamp Timer
H ---.--kHz Lamp1900H
SYNC ModeSYNC ModeSYNC Polarity
------H ------
Resolution
Refresh Rate0.0 Hz
0.0 Hz0x   0 Computer
Input SignalAnalog-RGB
Execute
:
:
:
: :
:
V ------
:
: :
: :
3
Reset Lamp Timer
Execute?
YES
NO
Reset Lamp Timer
Execute?
YES
NO 
						

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Maintenance MaintenanceEMP-7850 User’s Guide
The air filters can be replaced even if the projector is installed on a ceiling.PROCEDURE
Turn the projectors power off, wait for the cool-down
period to end, and then disconnect the power 
cable.
The cool-down period lasts for about 30 seconds.
Pull out the air filters.
Insert a flat-tipped screwdriver into the hollow as 
shown in the illustration below, and then pull it 
straight upwards.
The projector has two air filters.
Fold out the handle before removing the air filter at the side.
Insert the two new air filters, and push them in until 
they click into place.
Replacing the Air Filters12
3
TIP
Dispose of used air filters properly in accordance with your local 
regulations. 
						

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Saving a Users LogoYou can record the image that is currently being projected as a users logo.
PROCEDURE
Project the image that you would like to use as a 
users logo, and then press the [Menu] button on 
either the remote control or the projectors control 
panel.Select the Users Logo menu, and then press the 
[Enter] button on the remote control or the [Auto/
Enter] button on the projectors control panel.
Select Yes in the sub-menu, and then press the 
[Enter] button on the remote control or the [Auto/
Enter] button on the projectors control panel.
TIP
When a users logo is recorded, the previous users logo will be 
erased.12
[    ]: Select
ExecuteExecute
VideoVideoAudioudioEffEffectectUsers LogoUsers LogoAdvAdv
anced1anced1
AboutAboutReset AllReset All
[    ]: Execute
[Menu]: Exit
[    ]: SelectSettingSettingAdvAdv
anced2anced2
TIP
If keystone correction or the E-Zoom function have been used, they 
will be cancelled when the Users Logo menu is selected.3
Accept the present image as users logo?Accept the present image as users logo?
Users LogoUsers Logo
YESYES
NO
TIP
When you press the [Enter] button on the remote control or the [Auto/
Enter] button on the projectors control panel, the images will be 
projected at their original image signal resolution, so that when you 
are projecting images which have a resolution that is different from 
the number of pixels on the projectors panel, and when you are 
projecting video images, the display size will change. 
						

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Saving a Users Logo Saving a Users LogoEMP-7850 User’s Guide
The image to be recorded and a selection marquee 
box will be displayed, so move the marquee box to 
select the part of the image to use.
Tilt the [ ] button on the remote control or press the [ ], 
[ ], [ ] and [ ] buttons on the projectors control panel to 
select the part of the image to use as the users logo, and then 
press the [Enter] button on the remote control or the [Auto/
Enter] button on the projectors control panel.
Select Yes at the confirmation screen, and then 
press the [Enter] button on the remote control or the 
[Auto/Enter] button on the projectors control panel.Select the zoom rate in the Zoom rate setting screen, 
and then press the [Enter] button on the remote 
control or the [Auto/Enter] button on the projectors 
control panel.
4
[ESC]: Return[ESC]: Return
[    ]: Set[    ]: Set
[       ]: Move[       ]: Move
[Menu]: Exit
TIP
Users logos can be saved at up to 480 
× 360 dots in size.
5
Select this image?
YESYES
NO Users Logo
Users Logo
6
Set the zoom rate.Zoom rate:Zoom rate:
100%
200%
300%
Users LogoUsers Logo 
						

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Saving a Users Logo Saving a Users LogoEMP-7850 User’s Guide
Select Yes at the confirmation screen, and then 
press the [Enter] button on the remote control or the 
[Auto/Enter] button on the projectors control panel.
The image will then be saved. Once the image has been saved, 
the message Completed. will be displayed.
7
Save image as users logo?Save image as users logo?If you save it, the previous users logo willIf you save it, the previous users logo willbe overwritten.be overwritten.
YESNO
NO
Users Logo
TIP
 Saving the users logo may take a few moments (about 15 seconds). 
Do not use the projector or any other sources which are connected to 
the projector while the users logo is being saved. If this is not 
observed, it may result in errors in projector operation.
 Once a users logo has been saved, the logo setting cannot be 
returned to the factory default. 
						

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Optional AccessoriesThe following optional accessories are available for purchase if required. This list of optional accessories is current as of June 2003. Details of accessories are 
subject to change without notice.
*1 The 40 Billboard Vision screen cannot be used in combination with 
the Long throw zoom lens.
*2 Cannot be installed by the customer. Please contact your dealer for 
assistance.
*3 A special method of installation is required in order to suspend the 
projector from the ceiling. Please contact your supplier if you would 
like to use this installation method.
Soft carry case ELPKS28
Hard travel case ELPKS29
Use this case if you need to carry the projector by hand.Spare lamp ELPLP22
(Set with spare lamp and two spare air filters)
Use as a replacement for spent lamps.Filter kit (3 sets of 2 air filters (total 6)) ELPAF01
Use as a replacement for spent air filters.40 Billboard Vision screen
*1
 ELPHS01
60 Billboard Vision screen ELPHS03
A translucent-type screen. (Aspect ratio
4:3)
60 screen ELPSC07
80 screen ELPSC08
100 screen ELPSC10
A portable roll-type screens. (Aspect ratio 4:3)50 portable screen ELPSC06
A compact screen which can be carried easily. (Aspect ratio 4:3)VGA-HD15 PC cable ELPKC02
(1.8 m (6 ft.) - for mini D-Sub 15-pin/mini D-Sub 15-pin)This is the same computer cable as the projectors accessory computer cable.VGA-HD15 PC cable ELPKC09
(3 m (9.8 ft.) - for mini D-Sub 15-pin/mini D-Sub 15-pin)
VGA-HD15 PC cable ELPKC10
(20 m (65.6 ft.) - for mini D-Sub 15-pin/mini D-Sub 15-pin)
Use these extension cables if the accessory computer cable is too short.VGA-HD15/BNC PC cable ELPKC11
(1.8 m (6 ft.) - for mini D-Sub 15-pin/5BNC)
Use in order to connect the projector to a computer with a 5BNC port.Digital video cable DVI-D/DVI-D ELPKC20
(3 m (9.8 ft.) - for DVI-D male/male)
This is a DVI
 cable for connecting the projector to a computer with a 
digital RGB output interface.
Digital video cableDVI-D/DFP  ELPKC21
(3 m (9.8 ft.) - for DVI-D/DFP 20-pin)
This is a DFP
 cable for connecting the projector to a computer with a 
digital RGB output interface.
Remote control cable set ELPKC28
(10 m - for 3.5 mm dia. mini plug (male-male))
(10 m - for 3.5 mm dia. mini jack (male-female))
Use in order to operate the projector accurately by remote control from a 
distance.Long throw zoom lens
*2 ELPLL05
(Projection distance ratio: Approx. 2.33–3.15)
Medium throw zoom lens*2 ELPLM03
(Projection distance ratio: Approx. 1.75–2.36)
Projection distance ratio = Projection distance/Width of projection area
The values should be used as a guide for setting up. The value will vary 
depending on setup conditions and the zoom setting.
Ceiling plate
*3 ELPFC03
Pipe 370 (370 mm (14.57 in.)/silver)
*3
ELPFP04
Pipe 570 (570 mm (22.44 in.)/silver)
*3
ELPFP05
Pipe 770 (770 mm (30.31 in.)/silver)
*3
ELPFP06
Use when installing the projector on a high ceiling or a ceiling with 
veneer panels.
Ceiling mount
*3 ELPMB13
Use when installing the projector on a ceiling.
Image presentation camera ELPDC02
ELPDC03
ELPDC04
Use to project books, etc.